Home / 2,047.80-2,825.78-1,208.36

Finding the Fourth Proportional to 2,047.80, 2,825.78 and 1,208.36

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Solution

The fourth proportional to 2,047.80, 2,825.78 and 1,208.36 is: 1,667.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.80 : 2,825.78 = 1,208.36 : x
  2. Step 2: Convert to fraction form
    2,047.80/2,825.78 = 1,208.36/x
  3. Step 3: Cross multiply
    2,047.80x = 2,825.78 × 1,208.36
  4. Step 4: Simplify right side
    2,047.80x = 3,414,559.52
  5. Step 5: Solve for x
    x = 3,414,559.52/2,047.80
  6. Step 6: Final answer
    x = 1,667.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.